Global Patent Index - EP 0462619 B1

EP 0462619 B1 19970910 - Optical modulation element and its manufacturing method

Title (en)

Optical modulation element and its manufacturing method

Title (de)

Optisches Modulationselement und sein Herstellungsverfahren

Title (fr)

Elément de modulation optique et procédé pour sa fabrication

Publication

EP 0462619 B1 19970910 (EN)

Application

EP 91110235 A 19910621

Priority

  • JP 16331990 A 19900621
  • JP 16722890 A 19900625

Abstract (en)

[origin: EP0462619A2] An optical modulation element (1, 1') comprising: a plurality of n common electrodes (Y1-Y4) on the assumption that n denotes an integer of 2 or more; m subelectrodes (Si1-Si3) which are electrically connected to each of the common electrodes (Y1-Y4) by electrical elements (5b-5d, 6a-6d) on the assumption that m denotes an integer of 1 or more; and a plurality of segment electrodes (X1-X4) which confront the common electrodes (Y1-Y4) and the subelectrodes (S11-S41); in which when a first one (Si1) of the m subelectrodes (Si1-Si3) is electrically connected to an i-th one (Yi) of the common electrodes (Y1-Y4) on the assumption that i denotes an integer from 1 to n, an m-th one (Si3) of the m subelectrodes (Si1-Si3) is electrically connected to one (Yi-1) of the common electrodes (Y1-Y4) other than the i-th one (Yi) of the common electrodes (Y1-Y4). <IMAGE>

IPC 1-7

G02F 1/1343; G09G 3/36; G02F 1/136

IPC 8 full level

G02F 1/1343 (2006.01); G09G 3/36 (2006.01); G02F 1/141 (2006.01); G09G 3/20 (2006.01)

CPC (source: EP US)

G02F 1/134336 (2013.01 - EP US); G09G 3/3607 (2013.01 - EP US); G09G 3/3629 (2013.01 - EP US); G09G 3/364 (2013.01 - EP US); G02F 1/134345 (2021.01 - EP US); G02F 1/141 (2013.01 - EP US); G02F 2203/30 (2013.01 - EP US); G09G 3/2011 (2013.01 - EP US); G09G 3/2014 (2013.01 - EP US); G09G 3/2074 (2013.01 - EP US); G09G 2310/06 (2013.01 - EP US); G09G 2310/065 (2013.01 - EP US)

Designated contracting state (EPC)

DE FR GB NL

DOCDB simple family (publication)

EP 0462619 A2 19911227; EP 0462619 A3 19920826; EP 0462619 B1 19970910; DE 69127588 D1 19971016; DE 69127588 T2 19980122; DE 69132746 D1 20011031; DE 69132746 T2 20020704; EP 0687937 A2 19951220; EP 0687937 A3 19960207; EP 0687937 B1 20010926; US 5225919 A 19930706

DOCDB simple family (application)

EP 91110235 A 19910621; DE 69127588 T 19910621; DE 69132746 T 19910621; EP 95112642 A 19910621; US 71825691 A 19910620